The US military is laughably massive, that only happens when the military industrial complex can pay off corrupt politicians and keep this nonsense going to the point of utter absurdity.
Why are you using total money spent instead of GDP percentage in your argument? US has far more GDP than any of these countries by a large margin. For example In 2023 US had 27 trillion GDP, Saudi had like 1 trillion. Of course US will spend more than everyone else.
If Saudi has 27 times more GDP to match the size of the US, their spending would be 1671 billions using the same percentage.
You have to use the percentage to have a more fair comparison. US military spending is 3.4% of GDP. It's slightly above average but not on the high end.
An example of high military spending for a country not having a war would be Saudi Arabia. They spent 7% of their GDP on military in 2023, Isreal spent 5% which is also pretty high.
You are free make an argument on reasonable military spending for each country. But saying high military spending is the direct result of "military industry bribing" without evidence is silly.
US military industry is already getting way more orders than they can deliver. Isn't F-35 delivery backlog clogged all the way after 2030 or something? Why would they even need to bribe the government for more orders if they can't even produce enough products to meet the demand in the market? Doesn't make sense to me.