Yes. Integration means less conflict, more collaboration, less redundancy, more dynamism, less wasteful military build up, fewer threats from the US.

One country two systems means that China provides for national defense of the entire space while Taiwan maintains a substantial amount of governing autonomy.

Think of it like Greenland choosing to be a part of Denmark to keep itself safe from the US military, except in this example Greenland would be historically part of Denmark for centuries and have a population of 99% Danes and have some parts of Greenland only 4 miles off the coast of Denmark with US troops already stationed on it training Danes on Greenland to fight the mainland.