The financial crimes being investigated, tax fraud, insurance fraud, campaign finance, the inauguration, emoluments, etc. are enough to send Trump and his kids to prison irrespective of any of the so called 'collusion' crimes. But these are small fish compared to other investigations hinted at but redacted in the report. The redacted sections relate to cases that sprang out of the initial counterintelligence operation against Trump and these were farmed out to other units. Ultimately it will show that this will be about money for the lifting of sanctions against Russia and nuclear tech to the Saudis
Impeachment is a politic process and Trump still has too much support in the Senate for it to be successful now.