Trying to create interlaced effect from 60i footage; help with export settings/resolution

I've extracted some 60i footage from my Sony Handycam HDR-CX150 that records AVCHD (.MTS) files. I believe it records in 1440x1080 and it stretches it out to a vertical 1920x1080 resolution with a 1.333 pixel aspect ratio. I am importing my footage into Premiere Pro 2024 and I want to upload it to Youtube, with an intentional interlacing effect.

My bigger problem is that I want to extract the interlacing effect from this footage and make it viable (such as the video seen here). So, I interpreted my footage as Progressive Scan (instead of Upper Fields, which would get rid of the interlacing lines) and in my sequence I changed Upper Field First (which would have done the same thing as said before) to Progressive Scan. (below)

It seems to do the trick, but the problem is that when it is full screen, the interlaced lines are too thin (pixel-by-pixel on and off) and they kind of destroy my exported video into a mush of crushed bitrate. (below)

I looked at the preview screen of my export window for the crushed footage, and it looked EXACTLY how I wanted it to; the lines weren't too thin, but not too thick either. (below)

So then I got the idea of exporting my footage as a smaller resolution, so that the lines may become thicker and the effect will be less harsh. But for some reason, when I export it (say, at 1080p) and open it in preview, the interlaced lines almost look greyed out and not at full opacity, which tells me I'm doing something wrong with changing my resolution. (below)

Perhaps I'm supposed to export at some specific resolution that gives me those desired lines I saw in the preview? Looking for answers. Thanks!