The Wall Street Journal reported that Meta plans to move to a "Pay for your Rights" model, where EU users will have to pay $ 168 a year (€ 160 a year) if they don't agree to give up their fundamental right to privacy on platforms such as Instagram and Facebook. History has shown that Meta's regulator, the Irish DPC, is likely to agree to any way that Meta can bypass the GDPR. However, the company may also be able to use six words from a recent Court of Justice (CJEU) ruling to support its approach.
You have a right to not use their website. It's completely legal, as long as they're upfront
As long as they give you an option to remove your data if you don't agree to the terms, that's ok