Well, they have started accession talks, and 29/30 nato members will let them in.

Sweden applied to join relatively early in the war before they really could see how much Russia fucked up and misjudged Ukraine. To seriously invade another nation, Russia needs to finish the war in Ukraine and rebuild their armed forces over a decade or so.

Turkeys demand are unreasonable, and Sweden can't in all seriousness just accept them.

Do you really see Russia invading anyone else soon with the mess they got in Ukraine?

Just chill and wait. Sweden would be a valuable addition for Nato. Let the other members put pressure on Turkey. There's no panic for Sweden to join. Erdogan is probable just holding out for large enough of a pay day. His economy is failing with 85% inflation. To compromise on your democratic principles with egomaniac autocrats is just losing game. They will just come with more demands.

Stop sucking up to Erdogan, there's no way they can get out of that with their democracy and honor intact. Erdogan has no concept of an independent judicial system. He just wants his political opposition extradited.