Trump has more failures than successes, his name became toxic to where people want it off their buildings.

But mainly he has a history of straight up fraudulently ripping people off in condo frauds where they took tens of millions in down payments and never built the sold units, and the most visible the infamous Trump University, which by definition was a fraud because it was not accredited as a University at all. The fraud was that it was geared toward fleecing as much money for advanced services from it's consumers as they could afford...

...then there are the bankruptcies and more numerous loan defaults and schemes to get even more money from banks.

...then as a further display of dishonorable character he as a business model under paid on contracts for goods and services and used attorneys to make it so expensive to collect on contracts that it wasn't worth it, evidenced by over 4000 lawsuits to collect on breaches of contracts.

You ask how many successful businesses I run? Several, and I consulted to businesses to help them streamline and make their businesses more profitable, often working with failing and struggling businesses to turn them around.

Perhaps the most ignorant thing the typical Trump supporter does is hold Trump up as a business success, he is a failure as a human being and businessman, unless you have a character that doesn't respect honorable business practices.

"Several" is not the same as more than 200 with a success rate in the high nineties. I have run two successful ones myself and don't consider myself in the same league.
Your figure is a little high, and the important one is how many did he lose? I have witheld payment on unsatisfactory work. When an HVAC guy "fixes" your walk in freezer, presents you with an outrageous bill and the damn thing breaks down again the very next day, you make them fix it. By presenting me with the bill he certified that the work was complete. It wasn't.