He was accused of making sexual advances to a 14 year old when he was 26. Do you think an appropriate response to that is (not direct quotes) "okay, you got me, I'll admit it. I am gay" and "If I did try to get it on with a 14 year old, it's only because I had too much to drink?"
Let's look at wikipedia for a complete list:
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On October 29, 2017,
actor Anthony Rapp alleged that Spacey, while appearing intoxicated, made a sexual advance toward him in 1986, when Rapp was 14 and Spacey was 26.[75][76] Rapp had also shared this story in a 2001 interview with
The Advocate, but Spacey's name was redacted from publication to avoid legal disputes and public
outing.
[77] Spacey stated through Twitter that he did not remember the encounter, but that he owed Rapp "the sincerest apology for what would have been deeply inappropriate drunken behavior" if he had behaved as asserted.[78][79]
Fifteen others then came forward alleging similar abuse,
[80] including journalist
Heather Unruh (who alleged that Spacey sexually assaulted her son);
[81][82][83]Norwegian author and former royal family member
Ari Behn;
[84] filmmaker
Tony Montana; actor Roberto Cavazos;
[85] Richard Dreyfuss' son Harry;
[86] and eight people who worked on House of Cards.
[87] The Guardian was contacted by "a number of people" who worked at the Old Vic, where Spacey was artistic director for 11 years; they alleged that he "groped and behaved in an inappropriate way with young men at the time".[88][89] On November 16, the Old Vic confirmed that it had received 20 testimonies of alleged inappropriate behavior by Spacey, with three persons stating that they had contacted the police.[90] In December,
Spacey'sUsual Suspects co-star Gabriel Byrne revealed that production on that film was shut down for two days because Spacey made unwanted sexual advances toward a younger actor.[91]
On November 1, 2017, Spacey stated that he would be seeking "evaluation and treatment" for his behavior.[98][99]
The following day,
Variety reported that his publicist Staci Wolfe and talent agency
Creative Artists Agency were ending their relationships with him.
[100][92] In July 2018, three more allegations of sexual assault against Spacey were revealed by
Scotland Yard, bringing the total number of open investigations in the UK to six.
[101] The Los Angeles District Attorney's office said that it would also investigate Spacey's case.
[102][103]
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I'm a big believer in innocent until proven guilty, but a proper response to an accusation like this would be "I would never do that, and I never did do that!" not (again, not a direct quote) "If I did do that, I was drunk. Sorry about that. My bad."
I would argue that it's Spacey's response (and many subsequent accusations) that ruined him. I take no pleasure in hearing all this, though. I was definitely a fan of his work.