Encouraging earnings support stock markets - but for how much longer?

In view of the current political and economic framework data, one almost has to rub one's eyes when looking at the price development of stock markets. It is not that slight double-digit percentage declines since the beginning of the year limit the enjoyment value - but in view of the current events, one could have expected stronger setbacks. The reason for the relative stability is probably the positive profit trend. But how robust is this trend?