Your "solutions" don't protect you against a malicious coordinator
Why wouldn't my solutions protect me? Explain how I can still be Sybil attacked if I use the methods I described to you.
There is this account in Twitter,
wasabistats, which has recorded a bunch of Wasabi coinjoins with an anonymity set delivered to nowhere close of what was advertised in the client. The reason is simple, people consolidate their private coins in such a manner that downgrade the anonymity set. For example, if in a 200 input / output coinjoin, 190 of them are consolidated in another transaction, then de-anonymizing the other 10 inputs becomes a much easier problem to solve.
We already covered this, these 190 inputs remixing INCREASES the total anonymity set compared to what is displayed in the client. Why do you continue to lie by claiming people remixing hurts privacy?