Sell Morelos or keep him?

Should he stay or should he go? My argument is he should go as he has contributed to at least 15 points being dropped. Although he was sent off in win against Aberdeen in February he was unavailable against St Johnstone due to suspension that saw 2 points dropped due to a nil nil draw. See others below.

Morelos has lost us the league. Against Aberdeen in August …2 points dropped after his sending off. Against Aberdeen again in December… 3 points dropped after his sending off. Against Celtic in March 3 points dropped after his sending off. A total of 8 points and considering Celtic picked up three in March against us which they should not have got that is a swing of 11 points all down to Morelos. He is a good player but a liability. We also had to play without him due to his suspensions in a draw against Dundee after Aberdeen game in December and a draw against St Johnstone after his sending off against Aberdeen in February 2019 so thats another four points dropped in games where he was unavailable adding that on that’s 15 points dropped because of his stupidity and being either sent off or suspended. I say get shot of him urgently so we can get someone in before the start of the new season.
Problem is no club will pay the same as what Celtic got for Dembele because Dembele is not a hothead and a liability. Dembele had played and did well against teams in champions league and was being picked for France, a much better rated team than Colombia. Morelos cannot even get into the squad of 40 players that have recently been picked, this is apparently due to lack of game time and a dodgy temperament.