You aren't wrong here but I still disagree. First off politics is a game of giving the people what they want. Right now what they want is to be given stuff without having to pay for it. That isn't the politicians fault. That is the fault of society in general, and in particular the people who are voting. This isn't going to change until the mindset of the electorate changes. Secondly, I'm willing to listen and agree to an extent on the "both parties are the same" when it comes to spending money or kissing Wall Street's ass. However they are nowhere near the same on non-economic matters. Democrats are already declaring war on the 1st, 2nd, and 4th Amendments(at least on any case involving Trump or a Supreme Court nominee). Democrats are way more hell bent on regulating every aspect of your life than Republicans are.
Yes, this can be seen as having to decide between the lesser of two evils. I look at it as having to choose between what is at this point in time a necessary evil (Republicans) versus an unnecessary greater evil (Democrats). There may not seem to be any difference between any particular Republican politician and any particular Democrat politician but there is a difference between the two political parties philosophically today, though it might not be intentional. The Democrats are absolutely obsessed with political power and control. They are easily the most authoritarian, tyrannical version of a political party that has existed in this country in my lifetime. I hate the core of their party with every fiber of my being. Not the ordinary Democrat voter, but the political organizers, financial backers, lobbyists, media sycophants, and string pulling weasels that have control of the party's inner workings. Now Republicans may wish to behave in the same way, they may not. It is so hard to tell because there are so many factions to the party that they never all move in the same direction at any time and they have the built in disadvantage of not having the media's lips attached to their ass on every single political issue. If you think there is no difference between the parties or politicians ask yourself what are the chances of The Green New Deal being passed and signed into law with Republicans controlling Congress and sitting in the White House versus Democrats controlling Congress and sitting in the White House.