Sorry but the would be world denominators will at some point attempt to push us out of space with force unless they have some incentive not to do so.
That incentive is always the threat that we can knock them in the dirt and take their lunch money.
Since such things can not be pulled out of thin air they have to be built over time.
My arguments aren’t my own, They come from a lifetime of experience and work in national defense, including combat, war college, industry. If you are going to start calling them stupid, then I have no problem letting you think what you want.
As Trump has demonstrated impressively with North Korea, incentive doesn’t always come in the form of a threat. Rest assured we don’t ignore the potential threats from our adversaries, but I can guarantee you that a space war has no winners. But all the talk of a space war is really myopic anyway. Space is a component and force multiplier for the war that takes place on the ground. So the priority is to make sure that we can fight and win those wars with or without space.