usually it is difficult to explain such types of people, i have seen in them, that many hidayats are stopped from ALLAH swt upon them, i compare myself to them, to understand hidayats to how they react, with iman,
i usually observe there each favor from ALLAH swt and try to convey them, still they are blind then what does it show, they show same qualities as non muslims. as when i tell non muslims, this is islam, this is reality with examples proofs what will be there reaction, they dont care to check those, so deviant people are similar in case. the most thing to observe in them is imaan. how they force to associate something upon ALLAH, and say this is from ALLAH. where ALLAH swt has nothing predistend anything in islam about that, that is all clear, as islam is complete there is no addition and subtraction in it.
in india, there no deviant groups but similar people who do sajda to shrines, if you tell them do you think they will listen. or will care it is from ALLAH i am sinning against ALLAH, which is associating in worship to ALLAH. similarly saudi people who are destroying shrines , disrespecting everything in process. here they are deviant because they are raising shrines, there are deviant because they are destroying shrrines, how will i know that in which condition did my Prophet lived, destroying such invaluable house of Prophet and making a library.(its common sense when great khalifas left them as it is, many salaf of past left them as it is , there comes a group who thinks they surpassed such salaf and destroy all).
ALLAH is not catching any of them that is why as none is learning true islam, as none remained a human anymore, we are just ego satisfiers, humans are long dead, that is why judgement day has already started upon us. dont you see naked women all over the world and high rise sky scrapers in middle east.
check the mindset of this people , check the hidayat from ALLAH swt on this people. for example see questions from them, were in my feed. it is same like asian people, who think totally wrong against ALLAH swt or Prophet.
in very simple words check whom they give importance to, i have always seen they give importance to other than teachings of ALLAH that is Quran and hadees, means they REMEMBER MORE OF OTHERS, than ALLAH (shia do Ali or husain, as if they forget them then how will they be stable on what they say, so forcing more than ALLAH love) so in conclusion each muslim should keep ALLAH more in his heart brain thinking doing , anything, and the way to guide towards ALLAH is Prophet of ALLAH, so we love our Prophet SallALLAHu alaihiwasallam, and obey ALLAH and love ALLAH more than anything in this world.