Yeah the Bahai is just sort of innocuous and innocent looking, but it still bothered me and I even longed to burn the Bahai Gardens. Something about it just reminded me of phony pacifism, idolatry masquerading as some innocent type knowledge faith.
I feel you on that, and yeah, they "agree with all religions" which yeah is basically that. I listened to some stuff from them, and it's especially silly, so leave them this teshuva to make, and it'll bring a few ex-Bahai to Israel for some post-messianic tourism.
As far as Christianity...a lot of Israelis respond positively to anti-Christian hate (with fairly good reason I would say) and would be more than happy to be rid of the cross, despite the economic benefits. There are whole Jesus industries like 'The Jesus Trai' etc...I understand one is not supposed to derive any benefit from idolatry but in this case I am not sure where these Israelis who take an I don't care attitude stand, if they are really too guilty of making a buck from the lucrative tourist trade. They certainly might be opposed to seeing the churches gone...but might feel a relief in some ways.
There are a lot of Israelis who don't care that much and if you even have any thought towards eradicating churches you will be looked at as an extremist. When I was near the Galilee and had thoughts about the whole Jesus story, all the movies I've seen, the walking on water etc...and thought about all of the slaughter that happened, I nearly had a nervous breakdown...There is something creepy about the whole thing at least to me.
I don't think indirect tourism profits count as making profit from idolatry. You should ask your Rabbi and do whatever he says, but I just have a couple Ravs I almost never talk to who are my Rabbis, so I'm going to say that my understanding of the halacha is that the actual church, we wouldn't be allowed to collect rent or taxes from, and really should want it gone, but if the person happens to buy a falafel, it's profiting off the person's hunger, not his desire to serve idols. We'd probably find way older buildings if we let the archaeologists have at their basements, so history is a poor excuse, but even if though there's no reason to keep the churches around, the missionary groups should be the priority to be removed, not a building where goyim by some opinions may be practicing a permissible (to goyim only) for of idolatry.
I've studied just about everything in the NT, and bits of other books, like Martin Luther's (YS"V) books, the Book of Moron, and some of these wacky Jehovah's witnesses' writings, and let me save you a lot of time, and say it's all nonsense, and if you need anything specific disproven or laughed at, you know who to ask.
Personally I just like the idea of getting rid of any symbols of phony type pacifism in the Holy Land and keeping it real, that the God of Israel is not a pacifist. He may be for peace, but doesn't seem like a pacifist by any stretch of the imagination.
As for the mosques, I haven't been inside of any of them. It could be nice to replace their speaker music with calls to Jews to pray 3x per day. As bad as the Islamic teaching about killing Jews is, the idea of praying, at least for a little while 3x per day seems like a good thing and I don't mind the dome style architecture (minus the moon and star).
I'd first see mouth-pieces for it removed.
Muslims don't pray. When you pray, you believe you're talking to Hashem, and even with declarations and repetitions like Shema, you're speaking about how you're going to behave to be G-dly in this world. Muslims, on the other hand, repeat 5 times daily that they think G-d has a made up name and that a murderer is a prophet. That's it. There isn't a concept of spirituality involved with their prayer, it's like a gang creed they repeat, so that they'll stick with pisslam. It doesn't do anything good for them and anyone.
As for their architecture, they didn't invent the dome, and they stopped trying to copy further architectural innovations from the peoples they exterminated after they figured out that one. I'd loose a couple or all domes in the land to see a Beit ha Mikdash.