Once again, I will point out to you that the 14th amendment was an inadvertent consequence of Lincoln, not something designed by him. He simply set up the conditions that made bad law likely. Just as Carter set up the conditions from which came the Iran/Iraq war, so too did Lincoln set up the conditions from which came such legal consequences as the 14th amendment.
Some people are delusional. Whether Lincoln is significantly influencing your life is not even a serious question. The man has been dead for over 150 years.
Some people are repetitious. Yes, we know he's been dead for over 150 years, but if the length of time a man has been dead alters the consequences of his being alive, then George Washington's legacy must be all evaporated by now. He's been dead for 215 years.
Something tells me he was still responsible for the creation of this country back when he was alive, and our lives today are one positive result of his contribution.
Our world is the way it is today because of the decisions that we make today.
It is also the way it is because of the decisions made by leaders of yesteryear. Had LBJ never been president, we wouldn't have spent 21 trillion dollars on the "War on Poverty." We wouldn't have a massive criminal class created by the absence of fathers and funded by government money.
There is simply no doubt that, had he lived long enough, Lincoln would have supported the 14 Amendment, or something like it.
So clearly he gets some of the credit for any good it's done.
As for all those who have abused and twisted its language for their own nefarious purposes, none of that can be blamed on Lincoln, they must take responsibility for their own actions, and credit their own ideological forebears -- i.e., Marx, Lenin, Stalin, etc...
Let me cite an analogy: slave-holders and their defenders often claimed the Bible condones slavery, but that is a grave misreading.
In fact, the Bible consistently and strongly opposes slavery for God's people, and Christians believe that anyone who's accepted Christ -- including slaves -- are among God's people.
So the Bible cannot be blamed for slavery of Christians, any more than Lincoln can be blamed for misuse of the 14th Amendment.