You are right, I've been looking into EU taxes and the Netherlands, which was dead last in the list above, has a nice 30% tax cuts for expats.

The EU seems to tax quite heavily compared to the US, and also the salaries are also quite lower there too, I checked the cost of living in some EU cities compared to Austin and the salaries are not great.

I am only looking into Europe because the immigration system there seems to be much better than the US, otherwise the US would be much better option.

In a related note Teachers salaries don't seem that different.

Don't forget to calculate the money you are left with every month after paying taxes, health insurance, housing and basic needs.

I read that health insurance in the US costs 1000$+ per month, and even then you pay thousands out of pocket. Same for social security.

I believe that if you take this into your calculations the difference is not so bad

Health insurance in the US varies wildly. I pay less than $20 per paycheck for my insurance and my health expenses are capped by plan on an annual basis. I may spend little to none one year and a thousand dollars the next. It all depends on your employer, your health, etc. Additionally, all preventative appointments are covered under my insurance for free (1 per year).