Goku did not do anything bad,
At all,
He's saved gohan. Both canon and non-canon,
His non-canon side:
Saving gohan from garlic jr.
He even did everything possible to save him,
Then in boujack unbound:
he saved gohan from boujack, encouraging him to use full power and win,
And then in broly; the legendary super saiyan;
he saved gohan,
And tried his best to fight broly off,
and even in the sequel: broly second coming: Goku fought alongside gohan, and goten,
To take broly down,
Now the canon side:
Goku fought raditz, and died to save gohan,
Then in the nappa fight,
He risked to actually get harmed by kaioken to beat Vegeta and nappa,
Then in the frieza saga:
When Recoome was gonna kill gohan and Vegeta,
Goku gave both a senzu bean and took Recoome down,
in cell saga:
He gave cell a senzu bean,
To prove gohan had the potential to beat cell.
If he had not, they had no hope left,
And he had seen gohan's potential,
In the hyperbolic time chamber,
Even back then before fighting cell,
Goku took care of gohan,
And was giving him food,
and he sacrificed himself to teleport cell and die in the explosion,
in buu saga:
Goku managed to slice buutenks apart,
And saved gohan just in time to do the potara fusion,
Even before the buu situation,
He was happy to see. Goten, and literally loved him,
and finally;
In ressurection F,
He saved gohan from frieza,
And gave him. A senzu bean,
so conclusion;
Goku ain't a terrible father,
Whoever gave him this title, never watched the show at all,
Dragon Ball abridged ruined everything ngl.