Lol i see you have studied economy Mcway
Here's the thing. Republicans have wanted to abolish the income taxe for ages and replace the lost revenue by increasing the sales tax up to 25% on the dollar. This approach would kill the economy and punish the poor and middle class. They don't talk about this much but this is what they would love to do.
And when they talk about closing loopholes they arent just referring to corporate loopholes, they also mean the kind of loopholes that let you right off your home and children. At the end of the day they want to shift the tax burden to the middle class.