I agree those verses seem clear. But I do have one question. (I'm not asking this as a person trying to debate you but just as a person trying to understand.)
If we aren't raptured until the end of the tribulation, how is it that it will come like a "thief in the night?" If we interpret Daniel literally it tells us exactly how long the tribulation will be. In Matthew 24:36 it says it will be like in the days of Noah. "Two men will be in the field, one will be taken and the other left. Two women will be grinding with a hand mill; one will be taken and the other left." This, to me, paints a picture of a world where everyone is unexpectantly living according to routine at Christ's return. "People will be married and given in marriage" also paints this picture.
There are also people who believe "God's elect" describes people converted during the tribulation but after the rapture. Then there are also people who don't even have a futurist interpretation of Revelation, for whom this whole discussion isn't even relevant.
I am of the opinion that whether we are raptured, have to suffer trials, or just live out the rest of our lives as normal human beings isn't what's important. Whatever God's will is is God's will. The important thing is that we are ready. That we are always drawing closer to God and loving others as ourselves, which are the first two commandments. As I mentioned before, there are many less fortunate who would say they already are in tribulation. You never know what God has in store for you tomorrow.