Even more difficult than getting 2/3 of Congress would be getting 3/4 of the states to approve. Only 13 states would need to hold out to prevent passage. IOW, the Northeast plus the Pacific Coast states.
An amendment is only possible when there is broad national consensus on an issue, as the Founders intended.
As you say, talking about passing amendments to settle highly controversial issues is pointless. Not gonna happen.
Yep.