How to deal with my dad acting like he’s a great guy?

To make a long story short my ‘dad’ reacted to my mom being pregnant with me by trashing and breaking all of my baby stuff and repeatedly kicking her in the stomach annnd so she cut him off so he would never be apart of my life. I came across his Facebook today and found out that he has many children, some older and some younger than me, some he’s in contact with and I know that he’s not in contact with at least another three of them but he uploaded a picture of his two sons and the comments were praising him for how amazing he is and how clear it is that he loves all of his children and I do not know how to deal with the rage that it has suddenly ignited into me lol I want to publicly shame that man for what he did to me and my two other siblings but I don’t know if I should or not
How to deal with my dad acting like he’s a great guy?
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