This is pure ignorance or spreading misinformation. The lifting of excommunication had nothing whatsoever to do with the Holocaust denials, which have already been condemned. This bishop was one of a number of renegade bishops involved in the illicit consecration of bishops by SSPX, which was in fact the chief ground for excommunication in the first place.
The Pope has no control over these people, who are basically outside the Church and run their own operation. He cannot remove them from office because he didn’t install them in the first place.
This pope has spent much of his life trying to build better relations with religious Jews. It’s too bad when you get a hasty reaction like this, hitting out against a friend on the word of trouble makers who are perhaps less supportive of Israel than the Pope.
Well, I’m sure that Catholics would be suitable outraged in the following scenario:
Let’s say, after an Islamic dictator killed off half the world’s population of Catholics...
...that the Grand Mufti in Mecca then brought back into the fold an imam that said it never happened at all.
Errr...the Jewish Chief Rabbinate doesn't see it that way. The Protestants don't see it that way. Perhaps the problem isn't the fault of the Jews or Protestants.