Removing the West Bank settlements built after 1967 would probably be ethnic cleansing, especially given there are now third-generation settlers and it would be unideal for a peace to result in their dislocation. As much as I despise their behavior towards Palestinians, "ethnic cleansing justifies ethnic cleansing" is just a race to the bottom in the Holy Land and not the proper foundation for peace.
Would you be open for a consensual population transfer agreement?
As a pragmatist, if both sides were willing to come to a fair understanding and they made such a deal, I'd have to say yes. Don't let the perfect be the enemy of the good, I decry that having bad consequences elsewhere, I'll be damned if I suddenly turned around and let a dogmatic viewpoint sink something that did the greatest good for the greatest number.