There are many actions from his first week that are objectionable. In repeatedly invoking unsubstantiated conspiracy theories (like the 3 million illegal votes), he's delegitimizing his opponents and continuing to damage our society. So much objectionable action makes it hard to know where and when to focus, and outrage fatigue is an effective strategy.
But the executive order from yesterday titled “Protecting the Nation From Foreign Terrorist Entry Into the United States” is tantamount to a Muslim ban and requires objection. I am obviously in favor of safety and rules, but broad-strokes actions targeted at a specific religious group is the wrong solution, and a first step toward a further reduction in rights.
In addition, the precedent of invalidating already-issued visas and green cards should be extremely troubling for immigrants of any country or for anyone who thinks their contributions to the US are important. This is not just a Muslim ban. This is a breach of America's contract with all the immigrants in the nation.
This administration has already shown that they are not particularly impressed by the first amendment, and that they are interested in other anti-immigrant action. So we must object, or our inaction will send a message that the administration can continue to take away our rights.