That's a pretty simplistic statement

Is it? According to World Christian Encyclopedia: A comparative survey of churches and religions, "There are 19 major world religions which are subdivided into a total of 270 large religious groups, and many smaller ones. 34,000 separate Christian groups have been identified in the world" (emphasis is mine).

Seems there is plenty of disagreement over interpretation, even between close inter-faith factions who base their religion on the same source(s).

Obviously, those who seek to control others will use whatever methods work for them.

Sounds familiar, doesn't it? Eternal damnation is a pretty powerful control mechanism if you can get people to believe in it

not once does it mention disturbing/protesting/disrespecting a funeral service or those who are in mourning.

And they don't claim it does.. but look at what they do reference (II Kings 23).. the murder of those who don't share the same belief and are considered 'sinners', the destruction of private property of those 'sinners', and the desecration of the graves of 'sinners', the digging up of their bodies and bones and burning them so their ashes may be scattered over the ground. Peaceful protesting seems pretty lame by those standards, which is how they frame their argument.

Cheers,
Brad

To be old and wise, you must first be young and stupid.