Yes, the West always has to be tolerant of such outrages. This obligation, however, does not seem to be incumbent upon the Islamic world.
From Reuters, with thanks to Sr. Soph:
TEHRAN (Reuters) – Iranian President Mahmoud Ahmadinejad’s denial of the Holocaust is a matter for academic discussion and the West should be more tolerant of his views, Iran’s foreign ministry spokesman said on Sunday.
Ahmadinejad last week called the Holocaust a myth and suggested Israel be moved to Germany or Alaska, remarks that sparked international uproar and threaten diplomatic talks with Europe over Iran’s nuclear programme.
Foreign Ministry spokesman Hamid Reza Asefi defended the president’s remarks, which also drew a rebuke from the U.N. Security Council.
“What the president said is an academic issue. The West’s reaction shows their continued support for Zionists,” Asefi told a weekly news conference.
“Westerners are used to leading a monologue but they should learn to listen to different views,” he added.