Not sure if Trump is elected if he will become a dictator, but it won't be for his lack of trying. While he's a pathological liar, I do fear many of the things he is saying, such as (i) he will shut down media outlets who consistently criticize him, namely Comcast and MSNBC, and I'm sure a few others (ii) he will prosecute his political opponents and local DA's who don't align with his views on crimes (iii) he would fire any US Attorney who doesn't carry out his orders to prosecute a person he wants prosecuted (iv) he would gut the US Civil Service and replace career civil servants with acolytes who pledge their loyalty to him and support his false assertion that the 2020 election was stolen (v) he told his supporters at a "Christian" rally that if they voted for him and he won, it would be the last time they would have to vote (vi) he would use the military against civilians, and (vii) he constantly praises Putin, Orban, Kim Jung Un and other dictators, and its plain to see that he envies them since they have unbridled power, and he wants unbridled power for himself.
And really you only need to look at what he attempted in 2020. He was willing to do anything to remain in power and might have if not for Mike Pence doing the right thing. Fake electors, trying to get Georgia to "find" him the amount of votes it would take for him to win the state, encouraging a mob to attack the Capitol and then enjoying it on TV for 3 hours while police officers were getting the crap beat out of them, now praising the same violent rioters and saying he will pardon them if elected. Is this not what a dictator does? When staunch Republican conservatives such as Liz Cheney and Adam Kinzinger, among others, are calling out the alarm, I think its worth taking note since they have given up their political careers in protest of this dictator wannabe leading the Republican party/cult.