Why you should not trade, when Federal Rate expect to raise?

Just 3 hours to FOMC Statement, I the regular FOMC meeting usually traders like us as a retail traders with the small capital compare to the big banks, prefer to stay out of market, manage open positions, and do not open new positions. But today Federal Funds Rate is add to the FOMC, Expert expect raise rate from 0.75% to 1.00%. So why we should stop trading? Firstly, as a trader keep our capital safe is the our priority. This is the first responsibility for the traders. Secondly, this is the time which big companies, Big banks, financial institutions  come to play. They already set their huge volume of orders into the market. Third, In these kinda events most of the time spread increase, it means you should pay more if you wanna trade, and It doesn't make sense for retail traders. Finally, uncertainty will increased, when It comes to the forecasting, expectation, Trading come with uncertainty which is not good, because it will increase risk. We are not like Risk, traders always try to control, manage the risk, less risk is better. So for the all reasons above, close your chart, and enjoy your life by reading a great book, and sip of tea.