More than that.
2 Thessolonians 2:11 And for this cause God shall send them strong delusion, that they should believe a lie:
You are taking it out of context and making God to be a deceiver. That is not what the passage actually says.
2 Thessalonians 2:3-12
"Don’t let anyone deceive you in any way, for that day will not come until the
rebellion occurs and the
man of lawlessness is revealed, the man doomed to destruction. 4 He will oppose and will exalt himself over everything that is called God or is worshiped, so that he sets himself up in God’s temple,
proclaiming himself to be God. 5 Don’t you remember that when I was with you I used to tell you these things? 6 And now you know what is
holding him back, so that he may be revealed at the proper time. 7 For the secret power of lawlessness is already at work; but the one who now holds it back will continue to do so till he is taken out of the way. 8 And then the lawless one will be revealed, whom the Lord Jesus will overthrow with the breath of his mouth and destroy by the splendor of his coming. 9 The coming of the lawless one will be in accordance with
how Satan works. He will use all sorts of displays of power through signs and wonders that serve the lie, 10 and all the ways that
wickedness deceives those who are perishing. They perish because they refused to love the truth and so be saved. 11
For this reason God sends them a powerful delusion so that they will believe the lie 12 and so that all will be condemned who have not believed the truth but have delighted in wickedness."
Some points here:
1. "That they should believe a lie" - what lie? The lie that the lawless one perpetuates - that he is God.
2. "That they should believe a lie" - who is they? The perishing ones, the ones that have refused to love the truth and have delighted in wickedness. In other words, people who have already first willfully chosen to be deceived.
3. "Strong delusion" - what is it? The man of lawlessness, who works the way Satan does. So it is not God that is deceiving people, it is the man of lawlessness.
4. "God shall send" - how does this happen? The passage says that the power of lawlessness is already at work, but is being restrained. God "sends" it when He stops holding it back.
5. When is the man of lawlessness supposed to be revealed? After the rebellion.
Ok, so now we can put it all back together. First there is a rebellion where people refuse to love the truth and be saved and choose to delight in wickedness instead. Then God, who has been holding back the man of lawlessness, finally decides to stop holding him back. Then the lawless one deceives the people who have already chosen wickedness over God, so they believe the lie that this man is God, and become condemned.
In conclusion, God does not deceive people - wickedness does, coupled with Satan's lies.