> Because they run a marketplace for Vs code they should also support paywalled forks?

Since, because of the marketplace, MSFT (somewhat) "monopolized" the access to extensions, they should not block other applications (forks) that also attempt to access the marketplace.

Those quotes around monopolized are really doing some heavy lifting considering that it is utterly trivial to use alternative marketplaces on (edit: flavors of) VS Code.

Seems to me this is plainly the community wanting its cake and to eat it too.