I am not sure I follow your reasoning. You're complaining about a request for donation, on a site which provides a language and supporting infrastructure like a package manager for free?

Why shouldn't the PSF be allowed to ask for donations on their site? I'm sure if you're unhappy with them, they will cheerfully refund you the price you paid?

Oh!, that's right, you paid nothing and you claim that asking for donations is somehow 'enshittification' of PSF.

Frankly, the level of entitlement in your post is something else.