He’s not wrong. But what he’s leaving out is that all this is very rich coming from him personally, a bit of too little too late when he was actually well-placed in 2016 to make a real stand.

It is true that Russell Moore has been speaking out to some extent against Donald Trump for years. But it is also true that when it would have counted most, during the 2016 campaign season, Moore walked back the strength of his anti-Trump statements in order to keep his highly-positioned job as president of the internal ethics board of the Southern Baptist Convention (an organization I consider to be deeply corrupt anyway):

On June 1, 2013, Moore became President of the Ethics & Religious Liberty Commission, the Southern Baptist Convention’s official entity assigned to address social, moral, and ethical concerns. . . . [Three years later,] Moore’s vocal criticism of then-candidate Donald Trump during the 2016 election season drew a backlash from fellow Southern Baptists, triggering a crisis in which more than 100 churches threatened to withdraw donations to the denomination’s Cooperative Program in protest of Moore’s stances and leading to calls for his resignation. After Moore issued statements of apology in December 2016 and March 2017 for “using words… that were at times overly broad or unnecessarily harsh,” Southern Baptist leaders affirmed their support for his leadership and he remained in his post. (Wikipedia)

It’s hard to call upon the rules and be taken seriously when you have not taken the rules seriously yourself:

“No one can serve two masters; for either he will hate the one and love the other, or he will be devoted to one and despise the other. You cannot serve both God and wealth." – Jesus

EDITED TO ADD: I am not a Christian myself, just comparing idolatry to idolatry here.