What makes you think this radar is any good at picking up an aircraft like the F-22?

But it may be great detecting small drones, however.

Filtering out all the noise, I suspect, is 'the hard part'. One would have to detect objects in a point cloud and determine if their paths are 'organic/random' such as animals - versus those that take more direct paths...

Because that's how arms race's work. It's how all competition everywhere works.

because there's other countries then russia

That Russia and China doesn't sell their radar to? Name one?

Stealth is just more dollars for the industrial war complex, especially if they are just going to switch to an army of remote control drones now.

Let's swap the military and NASA budgets for just one year.

It bugs me when I see this. Neil deGrasse Tyson is asking to double NASAs, budget as if that would be the best place to have money spent on science research.

NASA was the answer to last century's space race. Throwing money at it is an old, simple solution. I'd love if people came out with more ideas like the x-prize. I can get behind those new ideas.

Edit: and it's not like the military doesn't spend a ton of money on scientific and space research

Neither Russia nor China tend to sell their latest hardware.