One plus one isn’t three, or four: it is not more than the sum of its parts, some people use logic in some ghastly ways, using emotion and feelings as truth, the end result of the logic may be an ethical one when taken so far, but the logic is flawed and can be taken further or used in the opposite direction.
When discerning something we should look at the whole picture, however, the thread of though needs looked at. Can this reasoning go further, or too far, does it have problems such as over generalisation, or other flaws in general or personal practicability.
Just because logic starts from a personal thing doesn’t mean it is wrong, but sometimes personal things don’t make something right. Test and see for ourselves if our logic has flaws, it may have some valid assertions which can be used or may have some wrong assertions which need dropped, but it is the wrong parts which make the whole assertion wrong, not the correct parts which make the whole correct.
At the end of the day I may be right, I may be wrong, but I share this hoping I am one, the other, both, or neither.