My argument wasn’t “vaping isn’t healthy” or “vaping is more harmful than cigarettes”. It was “more research is needed”, which each of those studies I linked support. Thank you, though, for proving my point in your attempt to build a lovely strawman to argue against.

The number of ingredients is irrelevant, especially since the idea that there are “at most” 6 ingredients is simply wrong: https://hub.jhu.edu/2021/10/07/vaping-unknown-chemicals/

A major area of concern for vaping is the fact that vaping generates much higher concentrations of nano-particles compared to regular cigarettes, and therefore may penetrate much further into the lung material (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6312322/ and https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0210147). There are also concerns about contaminants, variations in delivery devices (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6312322/), and other confounding factors that require a lot more research to ascertain the long term impact.

As for whether I have a study or information contradicting the conclusion that vaping is safer than smoking, it depends on whether you selectively ignore the parts of the studies that say “more research is needed” (because apparently that’s an “ignorant take”), but searching for “peer reviewed articles electronic cigarettes safer than tobacco” returns these top results (I did not cherry pick in any way, and instead took the top results sequentially):

• https://journals.sagepub.com/doi/full/10.1177/2042098614524430: “In conclusion, toxicological studies have shown significantly lower adverse effects of EC vapor compared with cigarette smoke. Characteristically, the studies performed by using the liquids in their original liquid form have found less favorable results; however, no comparison with tobacco smoke was performed in any of these studies, and they cannot be considered relevant to EC use since the samples were not tested in the form consumed by vapers. More research is needed, including studies on different cell lines such as lung epithelial cells. In addition, it is probably necessary to evaluate a huge number of liquids with different flavors since a minority of them, in an unpredictable manner, appear to raise some concerns when tested in the aerosol form produced by using an EC device.” Granted, it does go on to say that existing evidence shows that vaping is safer than tobacco, but clarifies that there still needs to be more research on some of the unquantified risks of vaping.

• https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5469426/ This is an older study using a very small sample size. It focuses on e-cigs as a tool for smoking cessation, but also concludes “Similar to cancer risk, there are no published data describing the long-term lung function or cardiovascular effects of e-cigarettes; ongoing surveillance, especially once e-cigarettes are regulated and standardized, will be necessary.”

• https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0129443 This study was primarily measuring how likely e-cigs were to get people to stop using tobacco, rather than comparative safety (despite the title). The conclusion makes clear that it is not known (at the time; this was 9 years ago) if e-cigarettes could be considered “safe”: “Adding e-cigarettes to tobacco smoking did not facilitate smoking cessation or reduction. If e-cigarette safety will be confirmed, however, the use of e-cigarettes alone may facilitate quitters remaining so.”

I’m not sure what your Google search was, but its probably best not to cherry pick a single source to support your claim.

It is premature to declare vaping safer than smoking, as there is relatively little comprehensive research on the long term effect of vaping. The whole “vaping is safer” spiel is not that different than when doctors were paid to tout the health benefits of cigarettes: propaganda not based in conclusive science.