Your tactics here are a beautiful recipe for the creation of Daesh - a gorgeous recapitulation of every twentieth century misstep.
Note, he did not say that Russians bombing ISIS into oblivion and reinstating Assad is the best solution. He said that it's how it'll be done and he is right, because Putin wants "his" dictator out there and doesn't care much for France being bombed. Assad would likely put an end to Daesh, this is not a solution to the underlying problem, but nobody cares. Putin doesn't have any interest in taking terrorist pressure off Europe, Assad just wants power (like dictators usually do) and there is nobody else who has a perspective to improve things. They'll sweep the problem under the rug, like you predict, which will be an improvement from what is going on right now, but there will be resurgence after some time unless more permanent solution is effected.
I'd start by establishing a government in Syria that actually cares about Syrians. A secular regime that would respond strongly and decisively to extremism, but keep the population genuinely happy (as much as it's possible in the current situation). But that's a pipe dream, good look getting someone smart enough to clean this mess up to actually do it (and then those people to accept their new ruler, especially a secular one).
According to Incrastic doctrines, people from the Middle-East are naturally more prone to extremism. It's the result of unhygienic cultural practices and breeding.
Your point? Neither actual racism nor accusations of racism are needed here. Other people have pointed out
why extremism is prevalent (it's a common reaction to things going very bad), why those particular Muslim groups are prone to it (they're very religious, it's been even pointed out other very religious groups can be just as extremist if pressed) and why we don't want them in Europe. It's easy to slip into bigotry when there are genuine reasons not to like a large group of particular ethnic/religious group, but let's not do that.