In the 6-3 ruling for the state of IN that found voter ID laws constitutional, the majority explicitly said they knew it only passed because some legislators knew it would give their party an advantage, but that it did not matter because the states other listed justifications for the law were neutral. Basically, they recognized the Trojan Horse as such, then proceeded to wave it through the city gate.

All that said, requiring a photo ID would reduce the risk and probably the reality of voter fraud, so as long as it is free I support it. Most places already required photo ID of people who did not have the voter registration cards mailed out free of charge months before the election, but allowed those who had the card to vote without producing ID. Anyone so inclined could simply find out when the cards would be mailed out, swipe them from mailboxes, and vote as many times as they chose. Worse, since the only provision against fraud was basically just poll workers checking their rolls to verify people were registered in that district, then having them sign next to their name, each of the people whose cards were stolen would find, when they arrived at the polls, that they "already voted" and therefore could not cast a ballot.

Ultimately, it is not unreasonable to make voting incumbent on proving a person is who they claim to be, provided it it not a poll tax.