Christ said the path to Heaven was narrow. Truth is a dogmatic, intolerant thing. It can’t tolerate any sort of error :knight2:
I agree that the religious impulse of human nature can be filled temporary through other religions (most religions have rituals, meditation techniques, etc.). However, this religious urge was never supposed to be separated from Truth, for the religious impulse can make a man do amazingly good or despicably evil deeds. For example, the Aztec religion and the Canaanite/Carthaginian religion separated religion from truth so much that they began to sacrifice humans. The impulse is very strong: the Gnu Atheists are right that it can be very destructive. But they also ignore how it can (and often is) a source of great good.
In the modern day, an example of a religious impulse that is so divorced from truth that it is destructive would be the Muslim suicide bombing religion (not to be confused with the other Muslim religion

).
My opinion (and I think the Church’s as well) on non-Catholic religions can be best taught by Bishop Fulton Sheen (specifically between 14:00 - 16:30) here:
youtube.com/watch?v=XA6aIhHzXkw&safe=active
Remember, Catholicism isn’t illogical enough to teach that every other religion is completely wrong. When the Buddhist says that abortion is wrong, we praise the Lord because he is right
First of all, don’t mix up Mathematics with logic. They are related, but also distinct
Now, you are right that faith is an act of the will, and not of the passions (many Evangelicals and Pentecostals sadly make this mistake: when they lose their emotional feelings, they lose their faith). However, it is an act of the will (Grace is required, but that’s another story), which is trying to order itself with the Intellect. I don’t believe in Christianity, and therefore that makes it true. No, Christianity is true, and therefore I believe it.
Define “evidence.” I don’t want to assume that you believe in Scientism, but scientific evidence (as it is often defined today) is not the only way of understanding reality, let alone the universe. Scientism is demonstratively (and obviously) false. Many today think that religion and metaphysics are the same thing

They also turned “religion” and “dogma” into boo! words, while making “science” and “evidence” into ya! words (if it’s scientific, it must be good!

)
Love is an act of the will, causing a person to act for what they think is good for themselves or another. St. Thomas makes a distinction between natural love (which doesn’t require Grace) and Divine Charity (which is caused by Grace). Now, humans are spiritual animals, so when they experience spiritual realities (like true love, the act of the will), the “animal” side of them tries to “understand” it as well, which is why we experience different types of Love. You might think of this as experiencing love emotionally in different ways due to the different beloveds (so love between a mother and child is fundamentally the same as love between a mother and father, but the emotions are the different, and so we think of the two examples of love as different).
Christi pax,
Lucretius