IAH is the dirtiest airport I’ve visited in my life! Is it always like this ?

First time visiting Houston and I loved it! I flew into William Hobby which was like any other airport and then I left out of IAH and I was shocked. I had never experienced this level of dirtiness at an airport. It’s shocking that people can be this dirty and even more shocking that there’s no one to clean it ! (There was alot more trash under the seats and not in the pic but didn’t care enough to record/ take a pic)