pls do this

It already isn't.

Community Guidelines wrote:

Treat everyone with respect.
Scratchers have diverse backgrounds, interests, identities, and experiences. Everyone on Scratch is encouraged to share things that excite them and are important to them—we hope that you find ways to celebrate your own identity on Scratch, and allow others to do the same. It’s never OK to attack a person or group’s identity or to be unkind to someone about their background or interests.

Please report any content that violates this so that a Scratch Team moderator (all reports are reviewed by humans) can take it down if it does violate the CGs.

community guidelines
Treat everyone with respect.
Scratchers have diverse backgrounds, interests, identities, and experiences. Everyone on Scratch is encouraged to share things that excite them and are important to them—we hope that you find ways to celebrate your own identity on Scratch, and allow others to do the same. It’s never OK to attack a person or group’s identity or to be unkind to someone about their background or interests.

I don't know much about furries and therians but scratch welcomes anyone no matter their interests and identities so all of these anti-type groups would not be allowed because they are hurtful to a group of people. if you see people posting hateful content whether it is about furries, therians, LGBT+ people or other groups, then report it.

Please use the report button anytime you see any of the kinds of projects or comments you mentioned. They are already not allowed.