Do you believe that people whom say a prayer yet have no fruit of conversion are truly saved? My cousin for example said the prayer decades ago, yet today hears voices, lost his wife and kids due to his drug abuse, and is presently in a lock down facility. Do you think he is saved? can a christian be saved and try and commit suicide? Can a Christian be saved and hear from devils?
Jesus himself showed an example of what you call "easy believism";
Luk 18:9 And he spake this parable unto certain which trusted in themselves that they were righteous, and despised others:
10 Two men went up into the temple to pray; the one a Pharisee, and the other a publican.
11 The Pharisee stood and prayed thus with himself, God, I thank thee, that I am not as other men are, extortioners, unjust, adulterers, or even as this publican.
12 I fast twice in the week, I give tithes of all that I possess.
13 And the publican, standing afar off, would not lift up so much as his eyes unto heaven, but smote upon his breast, saying, God be merciful to me a sinner.
14 I tell you, this man went down to his house justified rather than the other: for every one that exalteth himself shall be abased; and he that humbleth himself shall be exalted.
The Pharisee believed in Lordship Salvation. He boasted that he obeyed God's commandments, yet he was not saved.
The publican made no such boast, but simply cried out for God to have mercy on him.
Jesus said the publican went down to his house justified, all his sins forgiven.
This is what YOU call easy believism, and Jesus said this man was saved.
If a man sincerely calls upon Jesus to save him from his sins he is saved.
Those who trust in their works are not saved.
You should be careful who you listen to.