Despite the message that Republicans are fiscal conservatives, their base might be, but the politicians are not. They are fiscal oligarchs, and some from their middle and working class base are beginning to see that the tax cuts are not working out for them.
As people have mentioned in these Trump supporters tweets, what did you expect? The tax cuts for the rich coinciding with the increase in federal spending was going to increase a federal deficit, and as Raw Story points out, "the tax bill capped deductions for taxes paid to state and local governments, while massively increasing the amount of money you must donate to qualify for a charitable giving deduction."
I don't think Republicans propose the kinds of tax policies that they do, because they're economically illiterate. Their tax policies are due to the fact that it's a party that bends over backwards for American oligarchs, so the rich get the tax cuts, and the rest have to make up the losses.
That's until I saw a tweet by freshman Congressman Dan Crenshaw, in which he tried to mock fellow freshman Rep. Alexandria Ocasio-Cortez, but only made him look like a complete dumbass, both about taxes and how professional sports operate:
Someone pointed out that the NFL is actually a socialist entity:
If the NFL was a capitalist entity players would sign as free agents instead of being drafted after playing collegiate football, and they would have been paid for their labor in college, because collegiate football is, in essence, a minor league system for the NFL in which they get to benefit from free labor.
Someone tweeted that the freshman Congressman is the first he has seen who doesn't understand how both taxes and sports work:
In response to that tweet, former NFL wide receiver Dante Stallworth noted his confusion by the Congressman's tweet despite having read it multiple times:
And, of course, Alexandria Ocasio-Cortez responded to Crenshaw's tweet, pointing out that the majority of the players in the NFL don't make the amount of money needed to pay the 70% marginal tax rate, and that maybe the NFL owners should think about hiring Colin Kaepernick:
Before people like Rep. Crenshaw and former Wisconsin governor Scott Walker try and critique AOC over her (which would be lower than when Republican Dwight Eisenhower was President) 70% marginal tax rate idea, know who it would actually apply to, and how a marginal tax rate works.
The Republican Party can no longer claim to be fiscally conservative. Their proven illiteracy about basic economic principles (i.e. Crenshaw and Walker) comes in the form of continuing to implement tax policies that inflate the federal deficit.
The only excuse the Republican Party has for it not being economic illiteracy is if they admit it's a political party that does the bidding of oligarchs, and admit that their economic system looks more like a feudal system than a capitalist one. Their economic system is designed for the money to flow upwards to the aristocrats while the peasants do all the work...