Any reason you choose a partner that you're attracted to is a preference that you're entitled to. Wherever it's a physical attribute or anything else.
We live in a democracy and I'd think if nothing else, we're entitled to choose a partner based on what we as individuals find attractive.
I'm black...if a man doesn't find black women attractive to date, that's his choice. It's not racist, it's a preference. He's not mistreating black women.......he just doesn't want to be in relationship with one. Nothing wrong with that at all.
Physical attraction is the first thing for most people, then you get to know the individual...the thing with modern times, is people lie online, photoshop pictures and catfish...so you can get to know their personality, before you actually are them.
There was a thread a while back, where the OP met her BF online and he said he was 9 years younger. If I recall rightly, she found out from seeing either his driving licence or passport ( she wasn't snooping) and when she asked him, he said it's because he didn't get many replies when he put his correct age.
There was another where the man lied about his occupation.
It's just wrong. When you provide false information on which someone makes a decision, you're removing their ability to make an informed choice.