Everyone with two brain cells wants to stay away from facists, that part is clear.

What i don‘t understan is why they are vacating their parliament seat. Wouldn‘t it be better to stay and vote with the democrats?

Or better found a new conservative party? Considering there are several fed up members.

Are they only leaving the parliament or also the party?

Is there ELI5 for us Europeans?

Members of parliament are vacating their seat because they are not satisfied with what their party is doing? That would be seen as rather undemocratic over here. You would expect them to leave the party, maybe join a different one, or stay as an unaffilated member.

What will happen with the empty seats?