Here is another viewpoint on that. I have some friends in India. They said that the Indian PM is a pure nationalist. He is the Indian version of Trump. Same goes for the British PM. They are all like reformers for their countries. Consider this if one is for nationalism then how does that go along with the current globalism trend. If she is related to Kamala then she is most likely a leftist/democrat. If that is the case she probably has the spirit of tolerism in her. And if that is the case then it still doesn't look good for Christians.
I agree with your point in comparing Trump and Indian PM. There are a lot of similarities. Both use kindling nationalist feelings to their advantage. Both use the majority religion in their country as their vote bank. The only thing is Christianity believes in giving freedom to other religions but Hinduism does not. Hindus are by default intolerant towards religions that oppose their view. They are inclusive only when other religions are inclusive, they cannot associate themselves with exclusive ideas of Christianity. We clearly believe Jesus is the only way. If we say Jesus is also one of the ways then Hindus will have no problem worshipping Jesus as one of their gods and take some good portions from his teachings!
I differ with you about globalism. As Christians, we should welcome globalism even if it is at the expense of our own national interests. What is our chief goal on this earth? To make America great again or to hasten the coming of Christ's kingdom? To spread the Gospel or to be part of a rich nation like the USA? If it is to spread the gospel then globalism is the thing that we should encourage. Because the world is coming together with global visibility, we are able to take the gospel to China, talk about persecution in China, talk about persecution in Muslim nations. Globalism is clearly taking the gospel to remote parts of the world where the Gospel has not reached before.
I myself came to the USA as a Hindu in 2008. But it is this globalism that brought me here. If we had anti immigration policies of American nationalists then I won't have come here. It is in the USA away from my own Hindu family influence, I got the gospel.
I am not against nationalism, but as Christian, we need to appreciate the visibility and reach that globalism is bringing.
Today in India if you are not a Hindu you are considered as an antinationalist or a traitor, definitely, a guy like me who left Hinduism is seen as a traitor by so called Indian nationalists!