“let if sevour itself.”
Yes, that’s one option.
The other is complete extermination of islam.
For a christian, the second one is the more charitable. Eradicate islam in order to save souls. Would probably require to nuke mecca and medina.
For an atheist, the first one is probably the best: just contain islam in some place somewhere, with no contact whatsoever with the rest of humanity.
The seeds of its own destruction were sown by the founder.