There are Catholics who do that and many who do not. Polls suggest that as many as three out of four Catholic couples employ artificial means of contraception, more than half approve of same-sex marriage, and a third do not regard homosexuality as a sin - all positions that are in direct opposition to Church teachings. (Of course many evangelical churches and even a couple of the mainstream Protestant denominations are as one with the Catholic Church on issues 2 and 3; but there, too, Christians in the U.S. and in the Western World generally are questioning the doctrines and official positions of their leaders and authorities.)
In the view of some - both Catholics and otherwise - this questioning of the wisdom and authority of the church makes the individuals who do it "bad Christians". One Christian group accusing another of "false teaching" and of "falling away from the Faith" is nothing new; it's been going on for more than two thousand years.
I guess my point is really that you will find church leaders and members in every group or denomination who don't welcome any questioning of church doctrines and practices - who do expect those things to be accepted "blindly and unquestioningly".
When I went from being a Southern Baptist to being a Catholic, one of the most startling differences I saw was that the Catholic Church did not seem to be afraid, as the several Baptist churches I attended had been, of their members being exposed to the literature and teachings of other Faiths. Whereas the literature racks in some of the evangelical churches that I attended or visited were stocked with pamphlets warning about the "cults" of Mormonism, Jehovah's Witnesses, Seventh Day Adventists, etc., and their pastors warned about the dangers of "Satanic influences" in the teachings of other groups, the first Catholic bookstore that I checked out had entire sections on Buddhism, Vedanta, Islam, as well as lots of books written from the perspective of "the cults". Study and comparisons of other Faiths was encouraged, instead of being frowned upon.
And I would respectfully suggest that very few churches, of whatever denomination, want someone like you bringing up things like that before the other members. They would much prefer that you bring those questions and thoughts in private to a pastor, minister or priest, or to another member whose intelligence and maturity you respect. "Church" is the place for fellowship and unity. Doctrinal discussions, even arguments, are fine in their place, but "church" is usually not that place.
In any established group of Believers, there will be those who, like you, want not only to learn what the church is teaching, but why it's being taught and how the teaching developed, etc. And they would be willing and able to argue and discuss those issues with you without any negative impact on their faith, their lives, or anything else. There will also, however, be those who would not be able to be around those sorts of discussions without it affecting their religious lives in a bad way - who perhaps aren't as adept at "compartmentalizing" things as you are. Pull one string by placing a doubt in their minds about one doctrine or teaching of the church, and it all starts to unravel for them. I knew a young man who told me that if he ever became convinced that human evolution was true he'd stop believing in God.