Guest wearing red

I've never head that either. I'm ok with any colors other than white and cream colors being worn. I don't think you're being a bridezilla at all, it's your day and of you don't want red to be worn that's your right. i'm not sure what the right way to bring it up would be though.

I'm not sure what's wrong with red unless the bride was going to wear a red dress?

I've heard it's rude because it's such a bold color it can be very distracting. It also is preferable not to wear the same color as the bride and yes Asian weddings tend to change into red.
I don't actually think it's rude of you to request certain colors not be worn. I request guests to avoid white and pink since it's the wedding colors (as a guest I mean naturally you ideally shouldn't wear wedding colors anyway if you know them). But honestly I woulda been ok with it if people did decide to wear those colors. It isn't actually a big deal aha

View Quoted Comment Lmao. It's her wedding. It is pathetic that sad individuals dictate what a bride and groom request for their wedding.

View Quoted Comment

The bride and groom get to dictate date, venue, time, food, music ..etc. They don't get to dictate what a guest to wears to a wedding. If they want to dictate what I'm going to wear, then they can buy my dress for me. We say it all the time to brides on here that if they want to dictate hair, nails and shoes that they have to purchase them. It's no different for a guest.

Very interesting, I've never heard of red being a color to be restricted for guests!

It's not rude for guests to wear red, and it would be rude for you to try to keep them from wearing red (or any other color).