Why This China's New Xian H-20 Bomber Worry America?

Why This China's New Xian H-20 Bomber Worry America?
Chinese H-20 Stealth Bomber Prepares to Counter B-21 Raider;
The H-20, dubbed "Storm" by analysts, is poised to enhance China's long-range striking capabilities, potentially reaching as far as the U.S. West Coast.
In this Video Comparisons have been drawn between the Xi'an H-20 and U.S. stealth bombers the B-21 Raider.

[@MuneerA-xg2fq]

Before B22 us also don't have experience 😢