>https://en.wikipedia.org/wiki/PLA_Navy_landing_barges

These do not have a non-hostile invasion purpose. China could have used these peacefully as some sort of "Look at how peaceful we are" PR in getting aid into Palestine, like the US's floating piers, and likely had better results, but they didn't, because these are war machines for invading Taiwan.

Almost all other military buildup China has done can be validly called protecting itself from a US blockade and maintain an ability to protect shipping, but these barges cannot be considered anything else.

>What's with all this scaremongering around China gonna invade everything anytime soon?

China has publicly declared their intentions to take back Taiwan, and publicly declared their intent to be militarily competitive with the United States, and publicly bitches and moans whenever anyone treats Taiwan as the independent country it is.

Stop squeezing your eyes shut.