Guys, what do you think, will Monero crash? I think that lots of companies will cut its support.
No, that is silly.
Besides the darknet and various markets, there are also many services which do legitimately accept Monero. So nothing will happen to Monero just because a mutli-coin wallet decides to cut support for Monero addresses. Genuinely speaking, it's better to use a dedicated wallet for Monero anyway, so that you can manage the seed phrase properly. (It is of a different format to Bitcoin.)