What I have brought up concerning these rules about eating and drinking with non-Jews has fallen out of practice.... But the halachas are still written and some people observe them. I admit that in this day and age very few modern Jews can live according to these rules. I don't... But I understand the reason for these rules, as I said to prevent inter-mingling which will lead to intermarriage which leads to assimilation. The sages were wise because they foresaw what would happen {as these things are rampant today}.
Even the Shabbatons I go to {and will attend this weekend} allow non-Jews to participate... And some in my minyan have even married non-Jews and had non-Jewish children. This is the sad result of ignoring these rules...