While I don't approve with the way you expressed it... I agree that people could be a little more considerate of colorblind readers. I almost immediately give up once I see a scatter plot with red and green. It tends to get worse the smaller the dots are.
The guy who made the charts is an acquaintance of mine and I've passed along your feedback. He wasn't aware of the issue and will keep it in mind for future work.
Just wondering - can you get a display filter for your OS or browser to do a colour substitution? Like make everything that's red into blue? Does that exists?
I know that iOS has it built in. I'll bet that macOS does as well.