How could the tipping point have been reached? Despite a few examples...it's not pervasive enough,
I therefore "conclude", with observational facts, that the tipping point has not been reached.
Muslims will impose sharia by incrementalism, which means you won't realize the tipping point has been reached, like the proverbial boiling frog. We have muezzins loudspeakers in Hamtrack, and children being frisked and gray old ladies being groped in airports while arabs waltz by.
The frog is now boiling and we're wondering where the tipping point is.