Yeah, that sort of statement is really reductive, as though your experience conforms to theirs. Especially if they actually called it a "point of view". That makes them sound like tourists. Not cool, I'd hope for better.
Objectively speaking it's possible that you could meet the perfect man for you, fall in love, and be perfectly content with him for the rest of your life. The likelihood is vanishingly small even if you were looking for a male partner though, and it sounds like it's a lot more probable this would happen with a woman instead, so at least you probably won't have to put up with those people being smug about it.
But even if you did end up meeting this mythical dude, even if you fell in love and yadda yadda - it wouldn't change your preferences. You wouldn't suddenly find attractive a man you found unattractive before, just because you got some dick. That's just dumb.