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.