I am Ashkanazi but I speak a Sefardic Hebrew
I doubt it.
You probably speak ashkefardic, like anybody else whose hebrew has been hijacked by the secular state of israel.
Do you distinguish between aleph and ayin?
Ok, but many Sefaradim pronounced it that way before the state was founded also. Not all Sefaradim had the correct formulation.
What you say there is so ridiculous, that whatever you are trying to say, it's not easy to link your first sentence to the second sentence, and get a sensible result.
You just haven't thought it through.
What do you mean by "That way".
if you mean "distinguished", then, your first sentence is blatantly obvious and unnecessary since anybody would agree on that.. You do that -very often- so I am guessing I interpreted you correctly there. Then in your second sentence, in some attempt to find some hole in what I said, you are actually making a claim along the lines of, the correct Sefaradi pronunciation being to pronounce aleph and ayin the same. And this is the correct formulation.
if you mean, "same", then I would be interested to know which Sefaradim pronounce/pronounced them the same. Sure, there are many educated in schools that do modern hebrew, and so they just don't know or weren't taught the traditional Sefaradi pronunciation.
Anyhow, having replied regarding your logic. I will now reply with some facts.
Judea explained that the Saadya Gaon (who lived a long time ago) has a accurate tradition on the hebrew language , describing how it should be pronounced. He says every letter should be pronounced distinctly.
The Rema , who is a big authority amongst ashkenazim, actually says that ideally the person that leads te service should be able to distinguish between aleph and ayin.
The Sefaradim generally agree that the yemenites have it most accurate, they distinguish the most, or rather, their tradition distinguishes the most.
There are still issues, sin and samech pronounced the same, the distinction has been lost.
You could claim that nobody knows how it should be pronounced and nobody can prove over another, so anybody's "tradition" or way, is as good as anybody elses.
You should then be clear that you are differing with the Rema and the Saadya Gaon (and rav yosef kairo , shulchan aruch) if you claim that aleph and ayin are authentically pronounced exactly the same.
You are welcome to. But the idea that some sephardim pronounced them same, and suggesting it is correct to pronounce them the same.. There isn't really any basis of logic or reaosning behind what you say. If you were some then I suppose you could make that argument.. but you didn't even mention any.