Tether is not going to stop because of this new MiCA rules, now they are investing in another stable coin project called StablR to promote stablecoin adoption in Europe.
This stablr.com is advertising as Regulated and European, with EURR and USDR tokens on ethereum and solana chain.
It's not only Tether with problems, exchanges started delisting other stable coins,including DAI.
https://cryptobriefing.com/european-stablecoin-adoption-tether-investment/