Yes believers in God have various religions.
And yes some people want to combine them all into one religion (Eg Baha'is) and some just give up and say they are all rubbish and etc.
I see Christianity as the best and the truth however and witnessed to by God in prophecy and by historical records.
But everything is attacked by those who don't believe and it becomes hard to see through the muck to see what the truth is without God leading the way.
The truth is people long for justice, immortality, peace... "something more"... That's why they hold on to religious stories.
Simon Peter answered Him, “Lord, to whom shall we go? You have words of eternal life.” (Jn 6:68)
Blessed are those who hunger and thirst for righteousness, for they will be satisfied. (Beatitudes)
If there's a God or any kind of justice under the sky
If there's a point, if there's a reason to live or die
If there's an answer to the questions, we feel bound to ask
Show yourself, destroy our fears, release your mask (Queen - Innuendo)