The stock market has a mind of it's own and anyone who says they know exactly how it is going to react is simply hoping and guessing. So you can all argue until you are blue in the face but it is just a form of gambling (not a value judgement - just a statement).
All one needs to look at is last week's market action. Early in the week market is sailing along - no concern at all about looming tariff increase deadline. Then trump tweet's about negotiation troubles - market tanks. Then government officials and pundits brush the trump tweet off as a negotiating tactic so 'nothing to see here' - market rebounds. Then the deadline happens with no deal reached and the feared tariffs happen - market tanks. Then trump and chinese both say things are going along swimmingly so nothing to worry about (even though no deal is in place and chinese say they will retaliate) - and market rebounds.
The big worry for the market was that tariff increase would cause retaliation and a trade war between the world's top 2 economies... that is exactly what is happening yet the market is happy because the men behind the curtains say ' I am the all powerful Oz'...
market = gambling
Best of luck to all!