"If the LORD build not the House, in vain do the builders labor." (Psalms 127:1)
G-D will lower the Third Temple from above. If the mosques are still there, it will squash them flat. If the Muslims don't like it, well, they'll be squashed too.
G-D will lower the Third Temple from above.
This will be the fouth temple. The third will be built soon by man.