You can’t share accounts on Twitch, at least not with prior permission from Twitch as 4.a of the ToS https://www.twitch.tv/p/en-gb/legal/terms-of-service/ says:
Unless expressly permitted in writing by Twitch, you may not sell, rent, lease, share or provide access to your account to anyone else
All new accounts require 2FA. It doesn’t matter if you remake it, or who logs in to it, one of the security requirements for all new accounts is that 2FA has to be enabled to be able to get and use a stream key.