Which would be bad, had he done so, but he didn't actually say that; the white flag comment was specifically and explicitly about being willing to directly negotiate with Russia, not about surrender.
> There were multiple occurrences when he doubled-down on his words after backlash.
He certainly called on multiple occasions for all parties to negotiate, but he was also consistent, both before Russia invaded, after the invasion and before the "white flag" comment, immediately after the "white flag" comment, and since that the invasion by Russia is (or "would be" before it occurred) unjustifiable, immoral, an act of aggression, and that Russia has the primary obligation to stop it.
It's hard to blame all the catholics that are sighing in relief hoping for a better successor.
Feel free to google for more details. There were multiple occurrences when he doubled-down on his words after backlash.