Any action of an individual that does not prevent another from enjoying their personal liberty and way of life should be subject to majority opinion or decision.
Matters such as abortion, gay rights and taking of drugs are not matters for the state or popular sentiments to decide on. All those are individual decisions.
The concept of liberty is just that - liberty. To do to oneself anything, as long as it doesn't prevent others from enjoying their liberty.
I hope some people are not implying that if the majority adopts Judaism, then we all must adopt the same faith because those of that faith are in the majority?
That's one simple example of where their thinking could possibly take us.
If majority rule on all matters were the only means of settling all issues, then slavery and apartheid would still be legal.
What willl happen when a majority decision tells us to stop drinking our choice champagne and whisky, or smoking our favourite cigar?