People of all religions claim to feel the love of their god.
I see you say they feel love "of" their god. I can see how ones might feel love "for" their god, but I am not informed that anyone feels loved "by" their god which is not God through Jesus. But the Bible says >
"Now hope does not disappoint, because the love of God has been poured out in our hearts by the Holy Spirit who was given to us." (Romans 5:5)
So, the Bible clearly says this.
How many people have you actually gotten to know, who have plainly said they feel loved by their god who is not Jesus? I have only heard from certain Christians that they experience God's love and this is through Jesus His Son. And Romans 5:5 says this is happening, "in our hearts".
I'm not the greatest believer(Christian) but some of this stuff I'm like God please come back these people are so confused and backwards.
People can treat God like He is just theoretical. But He is here, now, already. He is personal with us . . . with us all, in one way or another.
"God resists the proud, but gives grace to the humble" (in James 4:6, and in 1 Peter 5:5).
So, everyone is experiencing God, somehow, by His grace or they have the personal communication of His resistance.
And ones who have sought pleasure instead of God have wound up with their own passions trapping them and being degraded from love > Romans 1:18-32.
So, you are right, how it is not wise to trust in immorality.