Who cares what Theresa May accepted? She is out of power and could not deliver anything. Any agreement with her is a dead letter.
Its hardly surprising the Yurps would whine that those who wanted to get out were the dishonest ones rather than their flunkies who wanted to remain in.
As far as the need for Britain to leave now, in that at least there can be some agreement. Do not agree to an extension once this deadline expires. Its as simple as that.
She represented the UK. the deal was signed by the uk