Agreed, and to build upon that McCarthy failed to show ANY backbone in challenging a hostile government's priorities and acted to avoid any contentious votes and in favor of business as usual. His ouster was worth the price, just as Johnson's will be - for the same reasonsMcCarthy made promises to his congressional peers in exchange for their votes to win the Speaker position. McCarthy then didn't live up to his promises. He reneged on his comittments and suffered the consequences. Your sentence in red is inaccurate.
It took Lincoln quite a few wrong choices before he found the generals that could beat the south, but it was worth it once he did - and they didn't win by avoiding bloody battles when those were necessary. Lessons of history for the win