Is to criticize, to demonize? Are you just adding moral charge to the words?
Is it wrong to suggest that some religions are worse for human happiness than others, or less reasonable than others? In fact, regarding what you were talking about how "New Atheists" demonize religion, wouldn't it be better for them to be as specific as possible? To criticize exactly the ideas that they feel need criticizing, rather than all of them equally? Wouldn't the latter be irrational, rather than the former? Intellectual honesty would mean accepting that, I think.
For example, Harris has contrasted Islam to Jainism in terms of what they preach, what the core beliefs are, what actions by the members have actually been, and how they both relate to safety and happiness and peace and all that. As he puts it, Jainism is about as close to a religion of peace as can be, while Islam is anything but that.
I do agree with him about Islam regarding the religion itself, in most cases. I do think it's one of the most harmful religions and one of the ones least conducive to happiness and peace and reason.
Here's a
Pew Research report on the views of Muslims in some of the most populated Muslim-majority countries. For example, in that set of surveys to multiple countries, 84% of Muslim Egyptians and 76% of Muslim Pakistanis support the death penalty for those that leave Islam. It varies from country from high to low.
Also the countries that make homosexual acts illegal and punishable by imprisonment or up to death, are basically all either in Africa or are Islamic countries.
In many countries according to that report, the people that believe suicide bombings are never okay, are in minority.
The Qur'an itself contains rather violent and tribalistic statements, and unlike most other religions, is accepted as the unalterable word-for-word final statement from god directly.
To claim that all religions are the same in terms of impact, or to say that it is inherently "demonizing" to suggest that some religions have a worse impact on humanity than others in terms of freedom, happiness, reason, and other things, makes no sense imo.