If Communism ALWAYS Fails, How Come It Succeeds Into Power

If Communism ALWAYS Fails, how come it succeeds into power? How come, if it ALWAYS fails, such communist regimes still exist?
With the Mayoral race in New York City happening November 4, 2025 with a candidate supporting state-run grocery stores, government funded child-care, property developers scared to invest in New York after witnessing Donald Trump being selectively persecuted, the rioting in places such as North Carolina, Chicago, Portland, the state-failed response earlier this year to the California fire disaster, the lack of funds for Food Stamps/SNAP benefits - is America on the path, are we already there?