The US never does it with their neighbors because every single US neighbor is dominated and subservient, and the US already invaded more than it can use. The US absolutely did it to Cuba and various Latin American country and did it to Iraq, Syria, etc...
The proposed treaty is called the PAROS treaty and was proposed by Russia in 2008 officially as a draft. The US never gave it any suit and was actively hostile to the subject. https://www.nti.org/education-center/treaties-and-regimes/pr...
China is not threatening the invasion of India, the Philippines, or Japan. There are relatively small disputes of uninhabited territory, with the exception of Tawang with a population of 11 000 in India. You may as well say that the US is threatening to invade Canada because of disputes in the Arctic. I'm exaggerating, but only slightly.
Yes, Russia is threatening Ukraine with invasion. But this is not coming in a vacuum. Russia, in a vacuum, has nothing to gain from invading Ukraine, far from it. The reason why Russia has designs for Russia is because:
A) Ukraine has a border with Russia
B) Ukraine discussed joining NATO
C) NATO is attempting to encircle Russia
D) Russia is very weak strategically on the Ukrainian and Georgian border
E) NATO accession is impossible if there is a current conflict
Therefore, Russia will be threatening Ukraine as long as Ukraine has ambitions of joining NATO. It's not because Russia wants Ukrainian resources, it's fundamentally because Russia is afraid of being flanked by a hostile foreign alliance. From their point of view this is perfectly rational, you see the US withdrawing from the ABM treaty and building dozens of weapons systems to try to disable nuclear deterrence, trying as much as possible to deny air defenses and gain the capability to strike deep within Russia, and setting up all these systems that threaten the balance of power right next to Russia, then trying to creep up to the most vulnerable positions of Russia. It's completely logical to seek a neutral buffer state, and if that's impossible, to create a natural obstacle.
Throwing morals out of the window, it would be stupid to expect anything else. Russia never threatened Ukraine with invasion as long as Ukraine did not threaten to join NATO. If we want Russia to stop threatening Ukraine, then we have to stop the NATO threat of invading or blockading or otherwise crippling Russia militarily. The West would actually be pretty happy with more Russian adventures in Ukraine, it weakens their economy and scares off more countries into the EU camp, while giving excuses for sanctions and allows the US to take over some sectors.
The point is, no one is an innocent victim. Russia and China are happy to de-escalate and avoid arms races, as is made evident by the low military spending in China and the efforts to pursue asymmetric competition in Russia. It's just that the United States doesn't want to avoid an arms race. The US wants an arms race in space, because Russia is poor and will struggle competing, and China is trying to avoid spending too much on their military right now. So this is a domain where the US is seeking to buildup a commanding lead, and because of this the US is very happy with an arms race. That is, so long as the Chinese and Russians do not exceed US expectations, which they have a nasty habit of doing right now, and that the US military budget is constantly increasing, which is the purpose of this headline.
I think that the foreign policy you read is simply very biased towards the US and far from neutral. If you haven't heard about the 30 years of constant proposals by Russia to demilitarize space, I really don't know what to tell you. It's a massive oversight. The US loves arms races in space, always has, and this is not the first rodeo of the US avoiding armament treaties or withdrawing and trying to cause arms races. It's in the interest of the US so far.