Religion can be a source of comfort and joy. Often it gives focus to a person’s inherent spirituality. So if a religion gives peace, who are we to judge?
Respect for someone’s religious beliefs does not entail being subject to those beliefs. What others do according to their own ethical code should be no problem unless it starts to affect you or society in general in a negative way.
Respect for beliefs ends (in my case, anyway) when those beliefs deny basic truths like science. Science is the most basic study of truth. It does not take into account human prejudices or preconceptions. It is based on analysis of phenomena and rigorous testing, as well as peer review. When people embrace religion as invioable simply because they don’t wish to believe basic truths that affect continued human existence on this planet, their actions lead to unnecessary death and pain to countless people. In most religions this would be considered a sin. Following dogma to the detriment of truth is malicious folly. Yes, I am talking about climate change. Denying it is evil.
Yet that is not the only pitfall of religion. When religion dictates that one group is superior to another, or that a certain subset deserves suffering or lower status, that religion is wrong. Unfortunately, according to the doctrine of many fundamentalist or extremist religions, not only are small groups subjugated, but also over half of the world’s population. The treatment of women is a gauge for how civilized a nation is. It also marks how primitive a religion can be when women are thought of as chattel or second-class citizens.
We must not be slaves to others’ interpretations of G-d. Your “rights” to your beliefs ends when those beliefs dictate others must bow to them.