why me wrote:
Here is the problem: taliban antimormon catholics love to bring up the abominable church when disparaging Mormons and their religion.
No, Why Me. LDS leaders have historically loved to disparage other people's religions.
From the children's book
Doctrine and Covenants Stories, which is sold at LDS distribution centers:

But they seem to forget that the catholic cathedral is in the heart of salt lake city. How could brigham allow the devil's church so close to the temple?
He wouldn't. But it does prove he respected the catholics because he allowed them to build on that land.
It really is too bad that someone can't come up with a better algorithm for the Why Me chatbot, so he can adapt to his factual statements being refuted instead of simply repeating them. Besides the fact that Brigham Young was dead at the time the chatbot is talking about, Utah became a state in 1897. In 1900,
when the diocese purchased the land where the cathedral would be built, was not up to the LDS Church to "allow" other religions to locate their places of worship in what Why Me apparently thinks is the LDS Vatican.
Why Me's mistaken assumptions about Utah history are not helping him, either. He does not appear to be aware that the
First Presbyterian Church is right next to the Cathedral of the Madeline, somewhat diminishing his assumption that the cathedral's location is indicative of some special simpatico between Catholics and Mormons. Nor does he seem to be aware that
the Greek Orthodox Holy Trinity Cathedral is a few blocks from Temple Square, too, and was built in the early 1920's. The LDS Church did not "allow" the Greek Orthodox community to build it there.
The reason why large churches like these were built in or near downtown is that during that time period, the critical population mass (no pun intended) was in downtown and around the Avenues in Salt Lake City. A great big Catholic cathedral in, say, early 20th-century Murray or Draper would not have been particularly convenient for parishoners. It's really not hard to figure out, and it's not because the LDS Church, in its largesse, allowed other churches the free exercise of religion in Utah.