'How is saying that unemployment is at 20%, when it's actually at 4%, not serious?'
Because it is serious. It is the labour force participation rate. The official unemployment figures are not a true picture of unemployment. The figure taht counts s the labour force participation rate, not just claiming unemployment. There are millions not accounted for who have withdrawn themselves from the labour force.
'How is it saying that "nobody respects women more than me", when he self confessed to groping and there are reports of abuse, not a serious lie?'
That is a figure of speech like Blair saying "there is nobody more religious than me", not to be taken seriously
'How is accusing the Chinese of making up climate change, not a serious lie?'
That was a joke to make people laugh. You don't find it funny because you believe in climate change, but Trump fans were ROFL
'And how is saying that Obamacare is rotten, and he'll replace it with a much better system (while failing to say what it is), and then say he'll keep it, not a serious lie?'
He is not keeping it, he is keeping some aspects of it which he always said he would. The media teams have been lying to you deliberately. Saying it is rotten, is like saying "politicians are corrupt", that doesn't mean every single one of them is corrupt, for instance, obviously, Nigel Farage is not corrupt.