Arguably, the country is better today with Trump's presidency compared to before he took office.
Do you attribute any of that to Trump? I agree that the economy has continued to grow, but that does not mean the country is better. In particular, whenever I look at specific things that I can actually attribute to Trump, all I see is things getting worse.
I think our trade war with China is worse. Wealth inequality and corporate profiteering are worse. Our peace-keeping alliances with our allies are worse, and our simmering conflicts with our adversaries are worse. Environmental regulations and cleanup efforts are worse. Our levels of government corruption are worse. Our collective freedoms are worse. Our moral standing in the world is worse. Our tax structure is worse. Our justice system is worse, and our opioid epidemic is worse. Our military is less ready, or intelligence agencies are less functional, and our state department is gutted. Most importantly, to my mind, is that our collective sense of national unity has been absolutely destroyed. I can attribute all of these things directly to Donald Trump, and none of them made the country better.
By contrast, there have been some good things in America in the past two years, like a productive economy riding the Obama-era coattails, and a justice reform bill championed by democrats that got Trump's buy-in. Those are not Trump's doing. He's a bad leader, who has materially harmed America. He's a lifelong criminal who took power with the help of foreign adversaries, and he has besmirched and sullied the whitehouse every day with his presence in it. He's a national embarrassment and will be remembered as such, and I will be shocked if he wins again in 2020 because he has actively undermined our country's goals and ideals at every opportunity. America stands for many things, and Donald Trump is none of them.
Which is not to say you shouldn't vote for him again, if you like all of the horrible things he's done. That's the fatal flaw in democracy, after all. People get to choose their own self-destruction.